UI4000是UI2000的升级产品，采用超大屏幕液晶显示，不需要电脑就可直接显示波形和参数，接打印机可直接打印规范的报告，包容了原UI2000的全部功能和技术指标。满足了IEC60929、IEC60969、IEC61000-3-2、GB/T15144-2005、GB/T17263-1998等国际、国内对电子镇流器最新的要求。

UI4000 is the updated version of UI2000 with super-big LCD for displaying waveforms and parameters directly, it includes all the functions and technical parameters of UI2000. Reports can be printed directly if printer connected. It meets the latest test requirements for electronic ballasts  in international standards IEC60929, IEC60969, IEC61000-3-2.